Benefits of Sleep Extension on Performances During Total Sleep Deprivation (BankingSleep)

Objectives: investigate the effects of 6 nights of sleep extension on physical and cognitive performances before, during total sleep deprivation (39 hours continuous awaking) and after a subsequent recovery sleep. Design: Subjects participated in two experimental conditions (randomized cross-over design): extended sleep (10-h in bed, EXT) and habitual sleep (8-h in bed, HAB). In each condition, subjects performed two consecutive phases: (1) six nights of either EXT or HAB (2) three experiments days in-laboratory:baseline (BASE), sleep deprivation (TSD) and after 10 h of recovery sleep(REC). Performance tests were administered every 3 hours over the 3-d in laboratory. Setting: This cross-over and randomized study was conducted under standardized laboratory conditions with continuous polysomnographic recording Participants: 14 healthy men (age range: 26-37 years) participated in the study. Interventions: EXT vs. HAB sleep durations prior to total sleep deprivation (39 hr continuous awaking).